Results 21 to 30 of about 70,205 (364)
Nature Communications, 2021 Vectorial holography has gained a lot of attention due to the promise of versatile polarization control of structured light for enhanced optical security and multi-channel optical communication.
Inki Kim +6 more
semanticscholar +1 more source
Neuromorphic metasurface [PDF]
Photonics Research, 2019 Metasurfaces have been used to realize optical functions such as focusing and beam steering. They use subwavelength nanostructures to control the local amplitude and phase of light. Here we show that such control could also enable a new function of artificial neural inference.
Zhicheng Wu +4 more
openaire +2 more sources
Advances in Materials, 2022 As 2D metamaterials, metasurfaces provide an unprecedented means to manipulate light with the ability to multiplex different functionalities in a single planar device.
Wei Ma +6 more
semanticscholar +1 more source
Temperature invariant metasurfaces
High Contrast Metastructures XII, 2023 Abstract Thermal effects are well known to influence the electronic and optical properties of materials through several physical mechanisms and are the basis for various optoelectronic devices. The thermo-optic (TO) effect, the refractive index variation with temperature (dn/dT), is one of the most common mechanisms used for tunable ...
Shany Zrihan Cohen +3 more
openaire +3 more sources
Bipartite Dielectric Huygens' Metasurface for Anomalous Refraction [PDF]
Phys. Scr. 98 115539, 2023, 2023 Huygens' metasurfaces - fundamentally based on Schelkunoff's equivalence principle, Huygens' metasurfaces consist of a two-dimensional array of Huygens' sources formed by co-located orthogonal electric and magnetic dipoles. Such metasurfaces provide electric and magnetic responses to an incoming electromagnetic (EM) wave, leading to unidirectional ...
arxiv +1 more source
Mechanochromic Reconfigurable Metasurfaces [PDF]
Advanced Science, 2019 AbstractThe change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon ...
Jun-Yu Ou +7 more
openaire +8 more sources
Metasurface-driven full-space structured light for three-dimensional imaging
Nature Communications, 2022 Structured light (SL)-based depth-sensing technology illuminates the objects with an array of dots, and backscattered light is monitored to extract three-dimensional information.
Gyeongtae Kim +9 more
semanticscholar +1 more source
Coherent retroreflective metasurfaces [PDF]
Physical Review Research, 2021 Inhomogeneous metasurfaces have shown possibilities for unprecedented control of wave propagation and scattering. While it is conventional to shine a single incident plane wave from one side of these metastructures, illuminating by several waves simultaneously from both sides may enhance possibilities to control scattered waves, which results in ...
Cuesta, F. S. +4 more
openaire +5 more sources
Shaping elastic wavefront through zigzag-folded metasurfaces
Frontiers in Physics, 2023 We present a reconfigurable elastic metasurface design composed of an array of zigzag-folded sheets with parallel corrugations to control the wavefront of the refracted A0 Lamb mode wave.
Zhenkun Lin, Serife Tol
doaj +1 more source
Metasurface-enabled on-chip multiplexed diffractive neural networks in the visible [PDF]
Light: Science & Applications, 2021 Replacing electrons with photons is a compelling route toward high-speed, massively parallel, and low-power artificial intelligence computing. Recently, diffractive networks composed of phase surfaces were trained to perform machine learning tasks ...
Xuhao Luo +8 more
semanticscholar +1 more source